• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.161-164
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• 2012

Location-Based Services(LBS) are a general class of computer program-level services used to include specific controls for location data as control features in computer programs. In recent years, the number of smart device(Smart Phone, Tablet PC etc.) users growth was exponential. For that reason, using rate of LBS has drastically increased. The most important thing of LBS is security. Personal information, especially private information likes illness, should not be disclosed. In this paper shows how to attack LBS and how to defense it.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.713-716
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• 2003

현재 국내 LBS 가 중요한 서비스로 널리 확산되기 위해서는 서비스간의 상호운용성이 제공되어야 한다. 본 논문에서는 LBS 서비스간 상호운용성을 제공하는 개방형 LBS 를 위한 경로탐색 서비스에 대한 설계 및 구현기법을 제시한다. 최단경로문제(Shortest Path Problem)는 통신망 및 교통망의 분석, 생산라인의 품질 관리 등의 다양한 분야 등의 네트워크 흐름 최적화 문제 중에서 가장 많이 연구되고 있는 문제다. 도로 교통망에서는 교차로상에서의 회전 제약 문제 등의 제한조건이 존재한다. 본 논문에서 경로탐색은 듀얼 그래프(dual graph)를 이용하여 회전제약조건을 만족하는 경로를 구할 수 있었고, 사용자 경로탐색 기준에 따른 탐색기법도 제시한다. 또한, 구현된 서비스는OpenLS의 표준화된 인터페이스를 구현하여 상호운용성(interoperability)을 지원하며, 자바를 이용한 웹서비스로 구현되어 이식성, 운영체제 및 프로그래밍 언어 독립성을 제공할 수 있는 장점이 있다.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.366-372
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• 2007

In this research, a ubiquitous-based strategy for managing waterworks facilities is proposed to increase the usability of the existing related databases and to ensure the systematic way of distributing information. The current status of the existing waterworks GIS and GIS database were analyzed to achieve the goal. By studying the state-of-the-art technology, we found that importing the LBS(Location Based Service) technology to the databases is necessary. The results of these efforts are exclusive waterworks-mobile-terminals and LBS system supporting them. Furthermore, the applicability of the ubiquitous technology to waterworks has been examined to realize the real-time waterworks management.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.4 no.4
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• pp.272-277
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• 2011

LBS(Location Based Service) is one of the most important killer App. in the Smart-phone Era. The Smart-phone provide basically location informations using GPS, Wi-Fi AP, 3G ID as a location determination technology to supply LBS. Also it can use maps such as Google map and Daum map with Open API. Therefore, Smart-phone is regarded as the best platform to develop location based applications. In my paper, a location based smart-phone App., that is, "Real-Race App." is designed and implemented for applying events and marketing.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.6
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• pp.145-149
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• 2018

This paper introduces a method of sending and registering SMS using mobile LBS (Local Based Service) in social network service environment. This method acquires the location of the target person and object through the API and LBS, constructs the SMS based on the obtained information, and transmits and registers the SMS in the mobile environment. The composition of the SMS is the personal information of the object to be searched, the current position and the position of the object. Therefore, the user can quickly and accurately grasp the brief items and locations of objects to be searched through SMS. Also, Today we will improve the quality of life by providing upgraded service for shortening of appointment time and delivery.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.159-169
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• 2019

Today, the location based service(LBS) is globally developing with the advance of smart phones and IOT devices. The main purpose of this research is to provide users with the most efficient route information, analyzing big data of people with a variety of routes. This system will enable users to have a similar feeling of getting a direct guidance from a person who has often used the route. It is possible because the system server analyzes the route information of people in real time, after composing the distributed processing system on the basis of map information. In the future, the system will be able to amazingly develop with the association of various LBS services, providing users with more precise and safer route information.

• The KIPS Transactions:PartD
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• v.10D no.6
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• pp.885-896
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• 2003

The typws of service using location Information are being various and extending their domain as wireless internet tochnology is developing and its application par is widespread, so it is prospected that LBS(Location-Based Services) will be killer application in wireless internet services. This location information is basic and high value-added information, and this information services make prior GIS(Geographic Information System) to be useful to anybody. The acquisition of this location information from moving object is very important part in LBS. Also the interfacing of acquisition of moving object between MODB and telecommunication network is being very important function in LBS. After this, when LBS are familiar to everybody, we can predict that LBS system load is so heavy for the acquisition of so many subscribers and vehicles. That is to say, LBS platform performance is fallen off because of overhead increment of acquiring moving object between MODB and wireless telecommunication network. So, to make stable of LBS platform, in this MODB system, acquisition of moving object location par as reducing the number of acquisition of unneccessary moving object location. We study problems in acquiring a huge number of moving objects location and design some acquisition model using past moving patternof each object to reduce telecommunication overhead. And after implementation these models, we estimate performance of each model.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2002.04a
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• pp.119-127
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• 2002

위치기반서비스(LBS: Location Based Service)는 점차 확대되어 가는 무선정보통신 환경을 통해서 지리정보와 특정목적의 컨텐츠를 결합, 제공하는 서비스이다. 이 글에서는 현재 국내에서 상용화되어 있는 서비스 사례와 함께 위치기반서비스의 기본적인 구성과 무선측위기술, 그리고 최근 기술동향을 정리하였고 기술발전과 함께 진행되고 있는 국내, 국제표준화기구의 표준화방안과 무선측위기술의 위치정확도 향상방안을 제시하였다.

• Electronics and Telecommunications Trends
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• v.25 no.6
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• pp.11-19
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• 2010

LBS 기술은 현재까지 이동통신 기술의 발전 및 측위 기술의 고도화를 통해 다양한 측위 인프라를 기반으로 발전되어 왔다. 측위 환경 및 방식에 따른 다양한 LBS 솔루션이 공존하며 대부분의 표준 단체에서 새로운 기술을 개발하고 있다. 네트워크 기반 측위 기술은 쉽게 접근할 수 있는 인프라임에도 불구하고 상용 수준에서 만족할 만한 성능을 보이고 있지 않다. 따라서 본 논문에서는 네트워크 기반 측위의 중요성 및 범용성을 감안하여 관련 기술 및 표준화 동향을 살펴보고 현재의 기술 수준을 향상시키고 고정밀 위치인자를 가능하게 하기 위해서 해결되어야 할 과제에 대해 고찰해 보도록 한다.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.651-653
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• 2003

As a result of the project 'Development of core technology for open LBS', we developed several solutions such as personal navigation system, mobile game, and emergency system. In this paper, we explain the approach and architecture of these solutions and consider their meaning on spatial information bases and expectation in the future computing environments. The final goal of this suggested solution is to test the efficiency of our open LBS system and verify the applicability and usability in real application environments. Our approaches will be headed to the future ubiquitous computing environments.